Freq | Bryston 10B-LR, 10B-SUB, 10B-STD manual

RESISTOR/CAPACITOR SUBSTITUTION TABLES for PROGRAMMING CUSTOM CROSSOVER FREQUENCIES in LINKWITZ-RILEY (10B-LR) MODELS

The resistors used to program specific crossover frequencies in the Linkwitz-riley filters are often installed directly on the 10B-LR main boards, but they can also be installed on small programming boards as shown in the illustration “10B-LR PROGRAMMABLE LINK- WITZ-RILEY STEREO CROSSOVER”. Since the resistor values are dependent on the capacitor values used on the 10B-LR main board it is essential that the exact capacitor values are determined before attempting to find the correct resistor values for any particular crossover frequency. You may notice that the low pass capacitors (C1a, C1b, C2a & C2b ~ six axial capacitors in a row in the front left quadrant of the board) may be either 20nF, 22nF or 24nF. Also, please note that C1 is actually formed by paralleling two capacitors of the same value. Parallel capacitors are also used, on occasion, to produce other values of capacitance where needed. The value of two capacitors in parallel is equal to the sum of the two capacitances.

Please note that Bryston recommends that any component substitutions be performed only by qualified service personel and that Bryston cannot be held responsible for any damage caused by unqualified personel. Please contact your Bryston dealer or Bryston Limited directly if you have any questions about performing any modifications to Bryston equipment.

Capacitors: Low pass: C1=40n, C2=20n, High Pass: C(ab)=4n7

733 Hz

7K680

32K400

64K900

715 Hz

7K870

33K200 66K500

698 Hz

8K060

34K000

68K100

682 Hz

8K250

34K800 69K800

FREQ.

Ra,Rb

FREQ.

Ra,Rb

666 Hz

8K450

35K700

71K500

650 Hz

8K660

36K500 73K200

-----------------------------------------------------------------------------------------

634 Hz

8K870

37K400

75K000

619 Hz

9K090

38K300

76K800

11278 Hz

499R

2K100

4K220

11013 Hz

511R

2K150

4K320

604 Hz

9K310

39K200

78K700

591 Hz

9K530

40K200 80K600

10761 Hz

523R

2K210

4K420

10500 Hz

536R

2K260

4K530

577 Hz

9K760

41K200

82K500

563 Hz

10K000

42K200

84K500

10251 Hz

549R

2K320

4K640

10014 Hz

562R

2K370

4K750

552 Hz

10K200 43K200

86K600

536 Hz

10K500

44K200

88K700

9771 Hz

576R

2K430

4K870

9539 Hz

590R

2K490

4K990

526 Hz

10K700 45K300

90K900

512 Hz

11K000

46K400

93K100

9318 Hz

604R

2K550

5K110

9092 Hz

619R

2K610

5K230

498 Hz

11K300 47K500

95K300

489 Hz

11K500

48K700

97K600

8877 Hz

634R

2K670

5K360

8672 Hz

649R

2K740

5K490

477 Hz

11K800 49K900

100K00

465 Hz

12K100

51K100

102K00

8463 Hz

665R

2K800

5K620

8264 Hz

681R

2K870

5K760

454 Hz

12K400 52K300

105K00

443 Hz

12K700

53K600

107K00

8063 Hz

698R

2K940

5K900

7871 Hz

715R

3K010

6K040

433 Hz

13K000 54K900

110K00

423 Hz

13K300

56K200

113K00

7688 Hz

732R

3K090

6K190

7504 Hz

750R

3K160

6K340

411 Hz

13K700 57K600

115K00

402 Hz

14K000

59K000

118K00

7328 Hz

768R

3K240

6K490

7151 Hz

787R

3K320

6K650

394 Hz

14K300 60K400

121K00

383 Hz

14K700

61K900

124K00

6982 Hz

806R

3K400

6K810

6822 Hz

825R

3K480

6K980

375 Hz

15K000 63K400

127K00

365 Hz

15K400

64K900

130K00

6660 Hz

845R

3K570

7K150

6499 Hz

866R

3K650

7K320

356 Hz

15K800 66K500

133K00

347 Hz

16K200

68K100

137K00

6345 Hz

887R

3K740

7K500

6191 Hz

909R

3K830

7K680

341 Hz

16K500 69K800

140K00

333 Hz

16K900

71K500

143K00

6045 Hz

931R

3K920

7K870

5905 Hz

953R

4K020

8K060

323 Hz

17K400 73K200

147K00

316 Hz

17K800

75K000

150K00

5766 Hz

976R

4K120

8K250

5628 Hz

1K000

4K220

8K450

309 Hz

18K200 76K800

154K00

301 Hz

18K700

78K700

158K00

5517 Hz

1K020 4K320

8K660

5360 Hz

1K050

4K420

8K870

295 Hz

19K100 80K600

162K00

287 Hz

19K600

82K500

165K00

5260 Hz

1K070 4K530

9K090

5116 Hz

1K100

4K640

9K310

281 Hz

20K000 84K500

169K00

275 Hz

20K500

86K600

174K00

4980 Hz

1K130 4K750

9K530

4894 Hz

1K150

4K870

9K760

268 Hz

21K000 88K700

178K00

262 Hz

21K500

90K900

182K00

4769 Hz

1K180

4K990

10K000

4651 Hz

1K210

5K110

10K200

255 Hz

22K100 93K100

187K00

249 Hz

22K600

95K300

191K00

4539 Hz

1K240

5K230

10K500

4431 Hz

1K270

5K360

10K700

243 Hz

23K200 100K00

200K00

237 Hz

23K700

100K00

200K00

4329 Hz

1K300

5K490

11K000

4231 Hz

1K330

5K620

11K300

232 Hz

24K300 102K00

205K00

226 Hz

24K900

105K00

210K00

4108 Hz

1K370

5K760

11K500

4020 Hz

1K400

5K900

11K800

221 Hz

25K500 107K00

215K00

216 Hz

26K100

110K00

221K00

3936 Hz

1K430

6K040

12K100

3828 Hz

1K470

6K190

12K400

211 Hz

26K700 113K00

226K00

205 Hz

27K400

118K00

237K00

3752 Hz

1K500

6K340

12K700

3654 Hz

1K540

6K490

13K000

201 Hz

28K000 118K00

237K00

196 Hz

28K700

121K00

243K00

3562 Hz

1K580

6K650

13K300

3474 Hz

1K620

6K810

13K700

191 Hz

29K400 124K00

249K00

187 Hz

30K100

127K00

255K00

3411 Hz

1K650

6K980

14K000

3330 Hz

1K690

7K150

14K300

182 Hz

30K900 130K00

261K00

178 Hz

31K600

133K00

267K00

3234 Hz

1K740

7K320

14K700

3162 Hz

1K780

7K500

15K000

174 Hz

32K400 137K00

274K00

170 Hz

33K200

140K00

280K00

3092 Hz

1K820

7K680

15K400

3010 Hz

1K870

7K870

15K800

166 Hz

34K000 143K00

287K00

162 Hz

34K800

147K00

294K00

2947 Hz

1K910

8K060

16K200

2871 Hz

1K960

8K250

16K500

158 Hz

35K700 150K00

301K00

154 Hz

36K500

154K00

309K00

2814 Hz

2K000

8K450

16K900

2745 Hz

2K050

8K660

17K400

150 Hz

37K400 158K00

316K00

147 Hz

38K300

162K00

324K00

2680 Hz

2K100

8K870

17K800

2618 Hz

2K150

9K090

18K200

144 Hz

39K200 165K00

332K00

140 Hz

40K200

169K00

340K00

2547 Hz

2K210

9K310

18K700

2490 Hz

2K260

9K530

19K100

137 Hz

41K200 174K00

348K00

133 Hz

42K200

178K00

357K00

2426 Hz

2K320

10K000 20K000

2375 Hz

2K370

10K000

20K000

130 Hz

43K200 182K00

365K00

127 Hz

44K200

187K00

374K00

2316 Hz

2K430

10K200 20K500

2260 Hz

2K490

10K500

21K000

124 Hz

45K300 191K00

383K00

121 Hz

46K400

196K00

392K00

2207 Hz

2K550

10K700 21K500

2156 Hz

2K610

11K000

22K100

118 Hz

47K500 200K00

402K00

116 Hz

48K700

205K00

412K00

2108 Hz

2K670

11K300 22K600

2054 Hz

2K740

11K800

23K700

113 Hz

49K900 210K00

422K00

110 Hz

51K100

215K00

432K00

2010 Hz

2K800

11K800 23K700

1961 Hz

2K870

12K100

24K300

108 Hz

52K300 221K00

442K00

105 Hz

53K600

226K00

453K00

1914 Hz

2K940

12K400 24K900

1870 Hz

3K010

12K700

25K500

103 Hz

54K900 232K00

464K00

100 Hz

56K200

237K00

475K00

1821 Hz

3K090

13K000 26K100

1781 Hz

3K160

13K300

26K700

98 Hz

57K600 243K00

487K00

95 Hz

59K000

249K00

499K00

1737 Hz

3K240

13K700 27K400

1695 Hz

3K320

14K000

28K000

93 Hz

60K400 255K00

511K00

91 Hz

61K900 261K00 523K00

1655 Hz

3K400

14K300 28K700

1617 Hz

3K480

14K700

29K400

89 Hz

63K400

267K00

536K00

87 Hz

64K900

274K00

549K00

1576 Hz

3K570

15K000 30K100

1542 Hz

3K650

15K400

30K900

85 Hz

66K500

280K00

562K00

83 Hz

68K100

287K00

576K00

1505 Hz

3K740

15K800 31K600

1469 Hz

3K830

16K200

32K400

81 Hz

69K800

294K00

590K00

79 Hz

71K500

301K00

604K00

1436 Hz

3K920

16K500 33K200

1400 Hz

4K020

16K900

34K000

77 Hz

73K200

309K00

619K00

75 Hz

75K000

316K00

634K00

1366 Hz

4K120

17K400 34K800

1334 Hz

4K220

17K800

35K700

73 Hz

76K800

324K00

649K00

72 Hz

78K700

332K00

665K00

1303 Hz

4K320

18K200 36K500

1273 Hz

4K420

18K700

37K400

70 Hz

80K600

340K00

681K00

68 Hz

82K500

348K00

698K00

1242 Hz

4K530

19K100 38K300

1213 Hz

4K640

19K600

39K200

67 Hz

84K500

357K00

715K00

65 Hz

86K600

365K00

732K00

1185 Hz

4K750

20K000 40K200

1156 Hz

4K870

20K500

41K200

63 Hz

88K700

374K00

750K00

62 Hz

90K900

383K00

768K00

1128 Hz

4K990

21K000 42K200

1101 Hz

5K110

21K500

43K200

60 Hz

93K100

392K00

787K00

59 Hz

95K300

402K00

806K00

1076 Hz

5K230

22K100 44K200

1050 Hz

5K360

22K600 45K300

58 Hz

97K600

412K00

825K00

56 Hz

100K00

422K00

845K00

1025 Hz

5K490

23K200 46K400

1001 Hz

5K620

23K700 47K500

55 Hz

102K00

432K00

866K00

54 Hz

105K00

442K00

887K00

977 Hz

5K760 24K300 48K700

954 Hz

5K900

24K900

49K900

53 Hz

107K00

453K00

909K00

51 Hz

110K00

464K00

931K00

932 Hz

6K040 25K500 51K100

909 Hz

6K190

26K100

52K300

50 Hz

113K00

475K00

953K00

49 Hz

115K00

487K00

976K00

888 Hz

6K340 26K700 53K600

867 Hz

6K490

27K400

54K900

48 Hz

118K00

499K00

1M0000

47 Hz

121K00 511K00 1M0200

846 Hz

6K650 28K000 56K200

826 Hz

6K810

28K700

57K600

45 Hz

124K00

523K00

1M0500

44 Hz

127K00 536K00 1M0700

806 Hz

6K980 29K400 59K000

787 Hz

7K150

30K100 60K400

43 Hz

130K00

549K00

1M1000

42 Hz

133K00 562K00 1M1300

769 Hz

7K320 30K900 61K900

750 Hz

7K500

31K600 63K400

41 Hz

137K00

576K00

1M1500

40 Hz

140K00 590K00 1M1800